JP2016530843A5 - - Google Patents
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- JP2016530843A5 JP2016530843A5 JP2016542035A JP2016542035A JP2016530843A5 JP 2016530843 A5 JP2016530843 A5 JP 2016530843A5 JP 2016542035 A JP2016542035 A JP 2016542035A JP 2016542035 A JP2016542035 A JP 2016542035A JP 2016530843 A5 JP2016530843 A5 JP 2016530843A5
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Description
[0143]本開示のこれまでの説明は、当業者が本開示を構成または使用することを可能にするために与えられる。本開示への様々な修正が当業者には容易に明らかであり、本明細書で定義された一般的な原理は、本開示の趣旨または範囲から逸脱することなく他の変形形態に適用され得る。本開示全体にわたって、「例」または「例示的」という用語は、例または事例を示すものであり、述べられた例に対する選好を何ら暗示せず、または要求しない。したがって、本開示は、本明細書で説明された例および設計に限定されるべきでなく、本明細書で開示される原理および新規の特徴に合致する最も広い範囲を与えられるべきである。
以下に、本願の出願当初の特許請求の範囲に記載された発明を付記する。
［Ｃ１］
ワイヤレス通信のための方法であって、
少なくとも第１の基地局および第２の基地局が無認可スペクトルにおけるチャネルにアクセスするための競合ベースのダウンリンクチャネルアクセスプロシージャを実行する時間期間を識別することと、
前記第１の基地局が前記ダウンリンクチャネルアクセス権を勝ち取ったかあるいは勝ち取る可能性が高いと決定することと、
前記第１のＵＥが前記無認可スペクトルにおける前記チャネルへのアクセス権を得るのを好むように、前記第１の基地局に関連する第１のユーザ機器（ＵＥ）に関する競合ベースのアップリンクチャネルアクセスプロシージャを修正することと
を備える、方法。
［Ｃ２］
前記修正することは、
前記決定することに応答して前記第１のＵＥにおいてクリアチャネルアセスメント（ＣＣＡ）を実行するための時間を調整することを備える、
Ｃ１に記載の方法。
［Ｃ３］
前記第１の基地局がチャネルアクセス権を勝ち取ったと前記決定することは、
前記第１の基地局がチャネルアクセス権を勝ち取ったと決定するために前記基地局のチャネル使用状況ビーコン信号（ＣＵＢＳ）をモニタすることを備える、
Ｃ２に記載の方法。
［Ｃ４］
前記調整することは、
前記アップリンクチャネルアクセスプロシージャを実行するための最も早い利用可能なＣＣＡ間隔になるように、前記第１のＵＥのＣＣＡ間隔を変更することを備える、
Ｃ２に記載の方法。
［Ｃ５］
前記第１の基地局がチャネルアクセス権を勝ち取ったと決定することに応答して前記第１のＵＥが前記無認可スペクトルにおける前記チャネルへのアクセス権を得るのを好むように前記第２の基地局に関連する第２のＵＥに関する前記アップリンクチャネルアクセスプロシージャを修正することをさらに備える、
Ｃ４に記載の方法。
［Ｃ６］
前記第２のＵＥのための前記アップリンクチャネルアクセスプロシージャを修正することは、前記第２のＵＥが最も早いＣＣＡ間隔の間に前記アップリンクチャネルアクセスプロシージャを実行するようにスケジュールされるときに前記第１のＵＥのためにスケジュールされたＣＣＡ間隔を前記第２のＵＥに割り当てることを備える、
Ｃ５に記載の方法。
［Ｃ７］
前記修正することは、次式のように前記基地局のグループＩＤに基づいて前記第１のＵＥのＣＣＡ間隔を決定するためのマッピング関数Ｆ U （ｇｒｏｕｐＩＤ，ｔ）を修正することを備え、
ｇ B （ｔ）＝前記最も早い利用可能なＣＣＡ間隔においてアップリンクＣＣＡを実行したであろう１つまたは複数のＵＥのグループＩＤである、
Ｃ６に記載の方法。
［Ｃ８］
前記第２のＵＥに関する前記アップリンクチャネルアクセスプロシージャを修正することは、
前記第１のＵＥのスケジュールされたＣＣＡ間隔と前記最も早い利用可能なＣＣＡ間隔との間のＣＣＡ間隔の数を決定することと、
前記第２のＵＥのスケジュールされたＣＣＡ間隔を前記決定された数のＣＣＡ間隔だけシフトすることと
を備える、Ｃ５に記載の方法。
［Ｃ９］
前記修正することは、次式のように前記基地局のグループＩＤに基づいて前記第１のＵＥのＣＣＡ間隔を決定するためのマッピング関数Ｆ U （ｇｒｏｕｐＩＤ，ｔ）を修正することを備え、
Ｃ８に記載の方法。
［Ｃ１０］
前記第２のＵＥに関する前記アップリンクチャネルアクセスプロシージャを修正することは、
アップリンクチャネルアクセスを後続のチャネルアクセス期間まで遅延させることを備える、
Ｃ５に記載の方法。
［Ｃ１１］
前記修正することは、
複数の利用可能なクリアチャネルアセスメント（ＣＣＡ）間隔から前記第１の基地局のスケジュールされたＣＣＡ間隔を決定することと、
前記第１の基地局の前記スケジュールされたＣＣＡ間隔に基づいて前記第１のＵＥのＣＣＡ間隔を設定することと
を備える、Ｃ１に記載の方法。
［Ｃ１２］
前記第１の基地局および前記第２の基地局が前記ダウンリンクチャネルアクセスプロシージャを実行する前記時間期間は、クリアチャネルアセスメント（ＣＣＡ）間隔を備え、前記第１の基地局と前記第２の基地局の前記ＣＣＡ間隔は重複せず、前記第１の基地局と少なくとも１つの他の基地局の前記ＣＣＡ間隔が重複する、
Ｃ１に記載の方法。
［Ｃ１３］
前記ＣＣＡ間隔は、利用可能なＣＣＡ間隔からの擬似ランダム選択に基づいて決定され、前記第１の基地局および前記少なくとも１つの他の基地局を備える基地局のグループは同じＣＣＡ間隔を有する、
Ｃ１２に記載の方法。
［Ｃ１４］
前記アップリンクチャネルアクセスプロシージャを修正することは、
基地局の前記グループのうちの前記基地局の１つが前記チャネルへのチャネルアクセス権を勝ち取ったと決定することと、
前記決定することに応答して前記第１のＵＥおよび前記少なくとも１つの他の基地局に関連する少なくとも１つの他のＵＥにおいてＣＣＡを実行するための時間を調整することと
を備える、Ｃ１３に記載の方法。
［Ｃ１５］
前記調整することは、
ＣＣＡ間隔のセットから基地局の前記グループに関連するＵＥのＣＣＡ間隔を選択することを備え、ＣＣＡ間隔の前記セットは、基地局の前記グループの外部の１つまたは複数の基地局に関連する１つまたは複数のＵＥのＣＣＡ間隔よりも早いＣＣＡ間隔を備える、
Ｃ１４に記載の方法。
［Ｃ１６］
ワイヤレス通信のための装置であって、
少なくとも第１の基地局および第２の基地局が無認可スペクトルにおけるチャネルにアクセスするための競合ベースのダウンリンクチャネルアクセスプロシージャを実行する時間期間を識別するための手段と、
前記第１の基地局が前記ダウンリンクチャネルアクセス権を勝ち取ったかあるいは勝ち取る可能性が高いと決定するための手段と、
前記第１のＵＥが前記無認可スペクトルにおける前記チャネルへのアクセス権を得るのを好むように、前記第１の基地局に関連する第１のユーザ機器（ＵＥ）に関する競合ベースのアップリンクチャネルアクセスプロシージャを修正するための手段と
を備える、装置。
［Ｃ１７］
前記修正するための手段は、前記決定することに応答して前記第１のＵＥにおいてクリアチャネルアセスメント（ＣＣＡ）を実行するための時間を調整する、Ｃ１６に記載の装置。
［Ｃ１８］
前記修正するための手段は、前記アップリンクチャネルアクセスプロシージャを実行するための最も早い利用可能なＣＣＡ間隔になるように、前記第１のＵＥのＣＣＡ間隔を変更する、
Ｃ１７に記載の装置。
［Ｃ１９］
前記修正するための手段は、複数の利用可能なクリアチャネルアセスメント（ＣＣＡ）間隔から前記第１の基地局のスケジュールされたＣＣＡ間隔を決定し、前記第１の基地局の前記スケジュールされたＣＣＡ間隔に基づいて前記第１のＵＥのＣＣＡ間隔を設定する、
Ｃ１６に記載の装置。
［Ｃ２０］
前記第１の基地局および前記第２の基地局が前記ダウンリンクチャネルアクセスプロシージャを実行する前記時間期間は、クリアチャネルアセスメント（ＣＣＡ）間隔を備え、前記第１の基地局と前記第２の基地局の前記ＣＣＡ間隔は、重複せず、前記第１の基地局と少なくとも１つの他の基地局の前記ＣＣＡ間隔が重複する、
Ｃ１６に記載の装置。
［Ｃ２１］
前記ＣＣＡ間隔は、利用可能なＣＣＡ間隔からの擬似ランダム選択に基づいて決定され、前記第１の基地局および前記少なくとも１つの他の基地局を備える基地局のグループは同じＣＣＡ間隔を有する、
Ｃ２０に記載の装置。
［Ｃ２２］
前記アップリンクチャネルアクセスプロシージャを前記修正するための手段は、基地局の前記グループのうちの前記基地局の１つが前記チャネルへのチャネルアクセス権を勝ち取ったと決定し、前記決定することに応答して前記第１のＵＥおよび前記少なくとも１つの他の基地局に関連する少なくとも１つの他のＵＥにおいてＣＣＡを実行するための時間を調整する、
Ｃ２１に記載の装置。
［Ｃ２３］
ワイヤレス通信のための装置であって、
プロセッサと、
前記プロセッサに結合されたメモリと
を備え、前記プロセッサは、
少なくとも第１の基地局および第２の基地局が無認可スペクトルにおけるチャネルにアクセスするための競合ベースのダウンリンクチャネルアクセスプロシージャを実行する時間期間を識別することと、
前記第１の基地局が前記ダウンリンクチャネルアクセス権を勝ち取ったかあるいは勝ち取る可能性が高いと決定することと、
前記第１のＵＥが前記無認可スペクトルにおける前記チャネルへのアクセス権を得るのを好むように、前記第１の基地局に関連する第１のユーザ機器（ＵＥ）に関する競合ベースのアップリンクチャネルアクセスプロシージャを修正することと
を行うように構成される、装置。
［Ｃ２４］
前記プロセッサは、前記決定することに応答して前記第１のＵＥにおいてクリアチャネルアセスメント（ＣＣＡ）を実行するための時間を調整することを行うようにさらに構成される、
Ｃ２３に記載の装置。
［Ｃ２５］
前記プロセッサは、前記アップリンクチャネルアクセスプロシージャを実行するための最も早い利用可能なＣＣＡ間隔になるように、前記第１のＵＥのＣＣＡ間隔を変更することを行うようにさらに構成される、
Ｃ２４に記載の装置。
［Ｃ２６］
前記プロセッサは、複数の利用可能なクリアチャネルアセスメント（ＣＣＡ）間隔から前記第１の基地局のスケジュールされたＣＣＡ間隔を決定することと、前記第１の基地局の前記スケジュールされたＣＣＡ間隔に基づいて前記第１のＵＥのＣＣＡ間隔を設定することとを行うようにさらに構成される、
Ｃ２３に記載の装置。
［Ｃ２７］
前記第１の基地局および前記第２の基地局が前記ダウンリンクチャネルアクセスプロシージャを実行する前記時間期間は、クリアチャネルアセスメント（ＣＣＡ）間隔を備え、前記第１の基地局と前記第２の基地局の前記ＣＣＡ間隔は重複せず、前記第１の基地局と少なくとも１つの他の基地局の前記ＣＣＡ間隔が重複する、
Ｃ２３に記載の装置。
［Ｃ２８］
前記ＣＣＡ間隔は、利用可能なＣＣＡ間隔からの擬似ランダム選択に基づいて決定され、前記第１の基地局および前記少なくとも１つの他の基地局を備える基地局のグループは同じＣＣＡ間隔を備える、
Ｃ２７に記載の装置。
［Ｃ２９］
前記プロセッサは、基地局の前記グループのうちの前記基地局の１つが前記チャネルへのチャネルアクセス権を勝ち取ったと決定し、前記決定することに応答して前記第１のＵＥおよび前記少なくとも１つの基地局に関連する少なくとも１つの他のＵＥにおいてＣＣＡを実行するための時間を調整するようにさらに構成される、
Ｃ２８に記載の装置。
［Ｃ３０］
プロセッサによって実行可能な命令を記憶するための非一時的コンピュータ可読媒体であって、
少なくとも第１の基地局および第２の基地局が無認可スペクトルにおけるチャネルにアクセスするための競合ベースのダウンリンクチャネルアクセスプロシージャを実行する時間期間を識別するための命令と、
前記第１の基地局が前記ダウンリンクチャネルアクセス権を勝ち取ったかあるいは勝ち取る可能性が高いと決定するための命令と、
前記第１の基地局に関連する第１のユーザ機器（ＵＥ）に関する競合ベースのアップリンクチャネルアクセスプロシージャを、前記第１のＵＥが前記無認可スペクトルにおける前記チャネルへのアクセス権を得るのを好むように修正するための命令と
を備える、非一時的コンピュータ可読媒体。
[0143] The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to this disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of this disclosure. . Throughout this disclosure, the term “example” or “exemplary” indicates an example or instance and does not imply or require any preference for the described example. Accordingly, the present disclosure should not be limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.
The invention described in the scope of claims at the beginning of the filing of the present application will be appended.
[C1]
A method for wireless communication,
Identifying a time period during which at least a first base station and a second base station perform a contention based downlink channel access procedure for accessing a channel in the unlicensed spectrum;
Determining that the first base station has won or is likely to win the downlink channel access right;
A contention based uplink channel access procedure for a first user equipment (UE) associated with the first base station, such that the first UE prefers to gain access to the channel in the unlicensed spectrum. To fix and
A method comprising:
[C2]
The correction is
Adjusting a time for performing a clear channel assessment (CCA) in the first UE in response to the determining;
The method according to C1.
[C3]
Said determining that said first base station has won channel access rights;
Monitoring the channel usage beacon signal (CUBS) of the base station to determine that the first base station has won channel access rights.
The method according to C2.
[C4]
The adjustment is
Changing the CCA interval of the first UE to be the earliest available CCA interval for performing the uplink channel access procedure;
The method according to C2.
[C5]
Associated with the second base station so that the first UE prefers to gain access to the channel in the unlicensed spectrum in response to determining that the first base station has won channel access Further modifying the uplink channel access procedure for the second UE to
The method according to C4.
[C6]
Modifying the uplink channel access procedure for the second UE is when the second UE is scheduled to execute the uplink channel access procedure during the earliest CCA interval. Allocating to the second UE a CCA interval scheduled for the first UE,
The method according to C5.
[C7]
The modifying comprises modifying a mapping function F U (groupID, t) for determining a CCA interval of the first UE based on a group ID of the base station as follows:
g B (t) = Group ID of one or more UEs that would have performed uplink CCA in the earliest available CCA interval;
The method according to C6.
[C8]
Modifying the uplink channel access procedure for the second UE comprises:
Determining the number of CCA intervals between the scheduled UE's scheduled CCA interval and the earliest available CCA interval;
Shifting the scheduled CCA interval of the second UE by the determined number of CCA intervals;
A method according to C5, comprising:
[C9]
The modifying comprises modifying a mapping function F U (groupID, t) for determining a CCA interval of the first UE based on a group ID of the base station as follows:
The method according to C8.
[C10]
Modifying the uplink channel access procedure for the second UE comprises:
Delaying uplink channel access until a subsequent channel access period,
The method according to C5.
[C11]
The correction is
Determining a scheduled CCA interval of the first base station from a plurality of available clear channel assessment (CCA) intervals;
Setting the CCA interval of the first UE based on the scheduled CCA interval of the first base station;
The method of C1, comprising.
[C12]
The time period during which the first base station and the second base station perform the downlink channel access procedure comprises a clear channel assessment (CCA) interval, wherein the first base station and the second base station The CCA intervals of stations do not overlap, and the CCA intervals of the first base station and at least one other base station overlap,
The method according to C1.
[C13]
The CCA interval is determined based on a pseudo-random selection from available CCA intervals, and the group of base stations comprising the first base station and the at least one other base station have the same CCA interval;
The method according to C12.
[C14]
Modifying the uplink channel access procedure comprises
Determining that one of the base stations of the group of base stations has won channel access to the channel;
Adjusting a time for performing CCA in the first UE and at least one other UE associated with the at least one other base station in response to the determining;
A method according to C13, comprising:
[C15]
The adjustment is
Selecting a CCA interval of a UE associated with the group of base stations from a set of CCA intervals, wherein the set of CCA intervals is associated with one or more base stations outside the group of base stations. Comprising a CCA interval that is earlier than the CCA interval of one or more UEs,
The method according to C14.
[C16]
A device for wireless communication,
Means for identifying a time period during which at least a first base station and a second base station perform a contention based downlink channel access procedure for accessing a channel in the unlicensed spectrum;
Means for determining that the first base station has won or is likely to win the downlink channel access right;
A contention based uplink channel access procedure for a first user equipment (UE) associated with the first base station, such that the first UE prefers to gain access to the channel in the unlicensed spectrum. Means to fix and
An apparatus comprising:
[C17]
The apparatus of C16, wherein the means for modifying adjusts a time for performing a clear channel assessment (CCA) in the first UE in response to the determining.
[C18]
The means for modifying changes the CCA interval of the first UE to be the earliest available CCA interval for performing the uplink channel access procedure.
The apparatus according to C17.
[C19]
The means for modifying determines a scheduled CCA interval of the first base station from a plurality of available clear channel assessment (CCA) intervals, and the scheduled CCA interval of the first base station. Setting the CCA interval of the first UE based on
The device according to C16.
[C20]
The time period during which the first base station and the second base station perform the downlink channel access procedure comprises a clear channel assessment (CCA) interval, wherein the first base station and the second base station The CCA intervals of the stations do not overlap, and the CCA intervals of the first base station and at least one other base station overlap,
The device according to C16.
[C21]
The CCA interval is determined based on a pseudo-random selection from available CCA intervals, and the group of base stations comprising the first base station and the at least one other base station have the same CCA interval;
The device according to C20.
[C22]
In response to the determining, the means for modifying the uplink channel access procedure determines that one of the base stations of the group of base stations has won channel access to the channel. Adjusting the time for performing CCA in at least one other UE associated with the first UE and the at least one other base station;
The device according to C21.
[C23]
A device for wireless communication,
A processor;
A memory coupled to the processor;
The processor comprises:
Identifying a time period during which at least a first base station and a second base station perform a contention based downlink channel access procedure for accessing a channel in the unlicensed spectrum;
Determining that the first base station has won or is likely to win the downlink channel access right;
A contention based uplink channel access procedure for a first user equipment (UE) associated with the first base station, such that the first UE prefers to gain access to the channel in the unlicensed spectrum. To fix and
An apparatus configured to do.
[C24]
The processor is further configured to adjust a time for performing a clear channel assessment (CCA) at the first UE in response to the determining.
The device according to C23.
[C25]
The processor is further configured to change the CCA interval of the first UE to be the earliest available CCA interval for performing the uplink channel access procedure.
The device according to C24.
[C26]
The processor determines a scheduled CCA interval of the first base station from a plurality of available clear channel assessment (CCA) intervals and based on the scheduled CCA interval of the first base station. And further configured to set a CCA interval for the first UE.
The device according to C23.
[C27]
The time period during which the first base station and the second base station perform the downlink channel access procedure comprises a clear channel assessment (CCA) interval, wherein the first base station and the second base station The CCA intervals of stations do not overlap, and the CCA intervals of the first base station and at least one other base station overlap,
The device according to C23.
[C28]
The CCA interval is determined based on a pseudo-random selection from available CCA intervals, and the group of base stations comprising the first base station and the at least one other base station comprises the same CCA interval.
The device according to C27.
[C29]
The processor determines that one of the base stations in the group of base stations has won channel access to the channel, and in response to the determination, the first UE and the at least one base Further configured to adjust time for performing CCA in at least one other UE associated with the station;
The device according to C28.
[C30]
A non-transitory computer readable medium for storing instructions executable by a processor comprising:
Instructions for identifying a time period during which at least a first base station and a second base station perform a contention-based downlink channel access procedure for accessing a channel in the unlicensed spectrum;
Instructions for determining that the first base station has won or is likely to win the downlink channel access right;
A contention based uplink channel access procedure for a first user equipment (UE) associated with the first base station such that the first UE prefers to gain access to the channel in the unlicensed spectrum. Instructions to fix and
A non-transitory computer-readable medium comprising:
Claims (12)
少なくとも第１の基地局および第２の基地局が無認可スペクトルにおけるチャネルにアクセスするための競合ベースのダウンリンクチャネルアクセスプロシージャを実行する時間期間を識別することと、
前記第１の基地局が前記ダウンリンクチャネルアクセス権を勝ち取ったかあるいは勝ち取る可能性が高いと決定することと、
前記ＵＥが前記無認可スペクトルにおける前記チャネルへのアクセス権を得るのを好むように、前記第１の基地局に関連する前記ユーザ機器（ＵＥ）に関する競合ベースのアップリンクチャネルアクセスプロシージャを修正すること、ここにおいて、前記修正することは、前記決定することに応答して前記ＵＥにおいて最も早い利用可能なクリアチャネルアセスメント（ＣＣＡ）間隔に対してＣＣＡを実行するための時間を調整することを備える、と
を備える、方法。 A method for wireless communication, wherein the method is performed at a user equipment (UE), the method comprising:
Identifying a time period during which at least a first base station and a second base station perform a contention based downlink channel access procedure for accessing a channel in the unlicensed spectrum;
Determining that the first base station has won or is likely to win the downlink channel access right;
As before Symbol U E is like to gain access to the channel in the unlicensed spectrum, modifying the user equipment (UE) regarding contention-based uplink channel access procedure associated with the first base station Wherein the modifying comprises adjusting the time to perform CCA for the earliest available clear channel assessment (CCA) interval at the UE in response to the determining. A method comprising:
前記第１の基地局がチャネルアクセス権を勝ち取ったと決定するために前記基地局のチャネル使用状況ビーコン信号（ＣＵＢＳ）をモニタすることを備える、
請求項１に記載の方法。 Said determining that said first base station has won channel access rights;
Monitoring the channel usage beacon signal (CUBS) of the base station to determine that the first base station has won channel access rights.
The method of claim 1 .
前記アップリンクチャネルアクセスプロシージャを実行するための最も早い利用可能なＣＣＡ間隔になるように、前記第１のＵＥのＣＣＡ間隔を変更することを備える、
請求項１に記載の方法。 The adjustment is
Changing the CCA interval of the first UE to be the earliest available CCA interval for performing the uplink channel access procedure;
The method of claim 1 .
複数の利用可能なクリアチャネルアセスメント（ＣＣＡ）間隔から前記第１の基地局のスケジュールされたＣＣＡ間隔を決定することと、
前記第１の基地局の前記スケジュールされたＣＣＡ間隔に基づいて前記ＵＥのＣＣＡ間隔を設定することと
を備える、請求項１に記載の方法。 The correction is
Determining a scheduled CCA interval of the first base station from a plurality of available clear channel assessment (CCA) intervals;
And a setting the CCA interval of the first base station of the scheduled Symbol before based on CCA interval U E, A method according to claim 1.
請求項１に記載の方法。 The time period during which the first base station and the second base station perform the downlink channel access procedure comprises a clear channel assessment (CCA) interval, wherein the first base station and the second base station The CCA intervals of stations do not overlap, and the CCA intervals of the first base station and at least one other base station overlap,
The method of claim 1.
請求項５に記載の方法。 The CCA interval is determined based on a pseudo-random selection from available CCA intervals, and the group of base stations comprising the first base station and the at least one other base station have the same CCA interval;
The method of claim 5 .
少なくとも第１の基地局および第２の基地局が無認可スペクトルにおけるチャネルにアクセスするための競合ベースのダウンリンクチャネルアクセスプロシージャを実行する時間期間を識別するための手段と、
前記第１の基地局が前記ダウンリンクチャネルアクセス権を勝ち取ったかあるいは勝ち取る可能性が高いと決定するための手段と、
前記ＵＥが前記無認可スペクトルにおける前記チャネルへのアクセス権を得るのを好むように、前記第１の基地局に関連する前記ユーザ機器（ＵＥ）に関する競合ベースのアップリンクチャネルアクセスプロシージャを修正するための手段、ここにおいて、前記修正するための手段は、前記決定することに応答して前記ＵＥにおいて最も早い利用可能なクリアチャネルアセスメント（ＣＣＡ）間隔に対してＣＣＡを実行するための時間を調整することを備える、と
を備える、装置。 An apparatus for wireless communication, wherein the apparatus is provided in a user equipment (UE), the apparatus comprising:
Means for identifying a time period during which at least a first base station and a second base station perform a contention based downlink channel access procedure for accessing a channel in the unlicensed spectrum;
Means for determining that the first base station has won or is likely to win the downlink channel access right;
As before Symbol U E is like to gain access to the channel in the unlicensed spectrum, to modify the user equipment (UE) regarding contention-based uplink channel access procedure associated with the first base station Means for adjusting the time for performing CCA for the earliest available clear channel assessment (CCA) interval at the UE in response to the determining. A device comprising:
請求項８に記載の装置。 It said means for modifying, the uplink to be the earliest available CCA interval for performing channel access procedure, changes the CCA interval before Symbol U E,
The apparatus according to claim 8 .
請求項８に記載の装置。 The means for modifying determines a scheduled CCA interval of the first base station from a plurality of available clear channel assessment (CCA) intervals, and the scheduled CCA interval of the first base station. setting the CCA interval before Symbol U E on the basis of,
The apparatus according to claim 8 .
請求項８に記載の装置。 The time period during which the first base station and the second base station perform the downlink channel access procedure comprises a clear channel assessment (CCA) interval, wherein the first base station and the second base station The CCA intervals of the stations do not overlap, and the CCA intervals of the first base station and at least one other base station overlap,
The apparatus according to claim 8 .
請求項１１に記載の装置。 The CCA interval is determined based on a pseudo-random selection from available CCA intervals, and the group of base stations comprising the first base station and the at least one other base station have the same CCA interval;
The apparatus of claim 11 .
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